Broad Compatibility: Replacement front wheels are designed for Shark Navigator Rotator, compatible with models NV350, NV351, NV352, NV355, NV356e, NV500, NV501, NV502, NV42, NV22, NV31, NV70. High-Quality Material: Replacement wheels made of durable and soft PE material, which helps prevent floor damage. Installation Instructions: Easy to install using a flat-blade screwdriver. Remove the old wheels by pushing down and replace with the new ones. Maintenance Tip: Regularly check vacuum wheels and replace worn ones to help maintain optimal vacuum performance. Please confirm your model before purchase to ensure compatibility. Color: As shown. Material: Plastic. Package Contents: 12 x Vacuum wheel. Note: Light reflection and different displays may cause slight color variations. Measurement may vary by +/- 1-3 cm.